Segregation behaviour of third generation advanced high-strength Mn-Al steels

• Autorzy: Grajcar A.
• Języki publikacji: EN

Abstrakty

EN

The paper addresses the macro- and microsegregation of alloying elements in the new-developed Mn-Al TRIP steels, which belong to the third generation of advanced high-strength steels (AHSS) used in the automotive industry. The segregation behaviour both in the as-cast state and after hot forging was assessed in the macro scale by OES and by EDS measurements in different structural constituents. The structural investigations were carried out using light and scanning electron microscopy. A special attention was paid to the effect of Nb microaddition on the structure and the segregation of alloying elements. The tendency of Mn and Al to macrosegregation was found. It is difficult to remove in Nb-free steels. Microsegregation of Mn and Al between austenite and ferritic structural constituents can be removed.

Słowa kluczowe

EN

macrosegregation; microsegregation; Advanced High Strength Steel (AHSS); TRIP steel; EDS; microstructure; hot deformation; microalloying

PL

makrosegregacja; mikrosegregacja; AHSS; stal typu TRIP; EDS; mikrostruktura; odkształcenie wysokotemperaturowe; mikrododatek stopowy

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2012
• Tom: Vol. 12, iss. 2
• Strony: 123--128
• Opis fizyczny: Bibliogr. 11 poz., rys., tab., wykr.

Twórcy

autor

Grajcar A.

• Silesian University of Technology, Institute of Engineering Materials and Biomaterials, Konarskiego 18a, 44-100 Gliwice, PL,

Bibliografia

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• [8] Grajcar A., Kalinowska-Ozgowicz E., Opiela M., Lesz S. (2011). Microstructural characterization of novel increased-manganese content TRIP steels. Proc. of the 20th Inter. Conf. "METAL'2011", Brno. 1-6 (CD-ROM).
• [9] Grajcar A., Kalinowska-Ozgowicz E., Opiela M., Grzegorczyk B., Gołombek K. (2011). Effects of Mn and Nb on the macro- and microsegregation in high-Mn high-Al content TRIP steels. Archives of Materials Science and Engineering. 49/1, 5-14.
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